<template>
  <div>
    <div style="margin: 10px 0">
      <el-input style="width: 200px" placeholder="请输入名称" suffix-icon="el-icon-search" v-model="name"></el-input>
      <el-select clearable v-model="courseId" placeholder="请选择课程" style="width: 200px" class="ml-5">
        <el-option v-for="item in course" :label="item.name" :key="item.id" :value="item.id">
        </el-option>
      </el-select>
      <el-select clearable v-model="type" placeholder="请选择题目类型" style="width: 200px" class="ml-5">
        <el-option v-for="item in [{name:'选择题',value:1},{name:'判断题',value:2},{name:'问答题',value:3}
                 ]" :label="item.name" :key="item.value" :value="item.value">
        </el-option>
      </el-select>
          <el-button class="ml-5" type="primary" @click="load">搜索</el-button>
      <el-button type="warning" @click="reset">重置</el-button>
    </div>

    <div style="margin: 10px 0">
      <el-button type="primary" @click="handleAdd">新增 <i class="el-icon-circle-plus-outline"></i></el-button>
      <el-popconfirm
          class="ml-5"
          confirm-button-text='确定'
          cancel-button-text='我再想想'
          icon="el-icon-info"
          icon-color="red"
          title="您确定批量删除这些数据吗？"
          @confirm="delBatch"
      >
        <el-button type="danger" slot="reference">批量删除 <i class="el-icon-remove-outline"></i></el-button>
      </el-popconfirm>
      <!--      <el-upload action="http://localhost:9090/user/import" :show-file-list="false" accept="xlsx" :on-success="handleExcelImportSuccess" style="display: inline-block">-->
      <!--        <el-button type="primary" class="ml-5">导入 <i class="el-icon-bottom"></i></el-button>-->
      <!--      </el-upload>-->
      <!--      <el-button type="primary" @click="exp" class="ml-5">导出 <i class="el-icon-top"></i></el-button>-->
    </div>

    <el-table :data="tableData" border stripe :header-cell-class-name="'headerBg'"  @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55"></el-table-column>
      <el-table-column prop="id" label="ID" width="80"  sortable></el-table-column>
      <el-table-column prop="name" label="名称" width="80"></el-table-column>
      <el-table-column prop="coursesName" label="所属课程" width="80">
        <template v-slot="scope">
             <span v-if="course &&course.length">{{course.find(v => v.id === scope.row.courseId).name}}</span>
        </template>
      </el-table-column>
      <el-table-column prop="type" label="类型">
        <template v-slot="scope">
            <span v-if="scope.row.type===1">选择题</span>
            <span v-if="scope.row.type===2">判断题</span>
            <span v-if="scope.row.type===3">问答题</span>
        </template>
      </el-table-column>
      <el-table-column prop="a" label="a选项"></el-table-column>
      <el-table-column prop="b" label="b选项"></el-table-column>
      <el-table-column prop="c" label="c选项"></el-table-column>
      <el-table-column prop="d" label="d选项"></el-table-column>
      <el-table-column prop="score" label="分数"></el-table-column>
      <el-table-column prop="answer" label="答案"></el-table-column>
      <el-table-column prop="detail" label="解析"></el-table-column>
      <el-table-column prop="userId" label="出题人id"></el-table-column>
      <el-table-column prop="time" label="出题时间"></el-table-column>
      <el-table-column label="操作"  width="280" align="center">
        <template slot-scope="scope">
          <el-button type="success" @click="handleEdit(scope.row)">编辑 <i class="el-icon-edit"></i></el-button>
          <el-popconfirm
              class="ml-5"
              confirm-button-text='确定'
              cancel-button-text='我再想想'
              icon="el-icon-info"
              icon-color="red"
              title="您确定删除吗？"
              @confirm="del(scope.row.id)"
          >
            <el-button type="danger" slot="reference">删除 <i class="el-icon-remove-outline"></i></el-button>
          </el-popconfirm>
        </template>
      </el-table-column>
    </el-table>
    <div style="padding: 10px 0">
      <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="pageNum"
          :page-sizes="[2, 5, 10, 20]"
          :page-size="pageSize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
      </el-pagination>
    </div>

    <el-dialog title="信息" :visible.sync="dialogFormVisible" width="30%" >
      <el-form label-width="80px" size="small">
        <el-form-item label="名称">
          <el-input v-model="form.name" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="类型">
         <el-select clearable v-model="form.type" placeholder="请选择">
                 <el-option v-for="item in [{name:'选择题',value:1},{name:'判断题',value:2},{name:'问答题',value:3}
                 ]" :label="item.name" :key="item.value" :value="item.value">
                 </el-option>
         </el-select>
        </el-form-item>
        <el-form-item label="所属课程">
          <el-select clearable v-model="form.courseId" placeholder="请选择">
            <el-option v-for="item in course" :label="item.name" :key="item.id" :value="item.id">
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="A选项" v-if="form.type===1">
          <el-input v-model="form.a" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="B选项" v-if="form.type===1">
          <el-input v-model="form.b" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="C选项" v-if="form.type===1">
          <el-input v-model="form.c" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="D选项" v-if="form.type===1">
          <el-input v-model="form.d" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="分数">
          <el-input v-model="form.score" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="答案" v-if="form.type===1">
          <el-radio v-model="form.answer" label="A">A</el-radio>
          <el-radio v-model="form.answer" label="B">B</el-radio>
          <el-radio v-model="form.answer" label="C">C</el-radio>
          <el-radio v-model="form.answer" label="D">D</el-radio>
        </el-form-item>
        <el-form-item label="答案" v-if="form.type===2">
          <el-radio v-model="form.answer" label="是">是</el-radio>
          <el-radio v-model="form.answer" label="否">否</el-radio>
        </el-form-item>
        <el-form-item label="答案" v-if="form.type ===3">
          <el-input  type="textarea" v-model="form.answer" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="解析">
          <el-input v-model="form.detail" autocomplete="off"></el-input>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false">取 消</el-button>
        <el-button type="primary" @click="save">确 定</el-button>
      </div>
    </el-dialog>

  </div>
</template>

<script>
import {serverIp} from "../../public/config";

export default {
  name: "Question",
  data() {
    return {
      serverIp: serverIp,
      tableData: [],
      goodsList:[],
      total: 0,
      pageNum: 1,
      pageSize: 10,
      name: "",
      courseId:null,
      type:null,
      form: {},
      dialogFormVisible: false,
      dialogFormVisible1:false,
      menuDialogVis: false,
      multipleSelection: [],
      menuData: [],
      props: {
        label: 'name',
      },
      expends: [],
      checks: [],
      roleId: 0,
      roleFlag: '',
      ids: [],
      course:[],
    }
  },
  created() {
    this.load()
    this.request.get("/course").then(res =>{
      console.log(res)
        this.course=res.data
    })
  },
  methods: {
    viewGoods(orderId){
      this.request.get("/question/getGoodsById/"+orderId).then(res =>{
        this.goodsList=res.data,
            this.dialogFormVisible1=true
      })
    },
    handleAvatarSuccess(res) {
      this.form.img = res
    },
    load() {
      this.request.get("/question/page", {
        params: {
          pageNum: this.pageNum,
          pageSize: this.pageSize,
          name: this.name,
          courseId:this.courseId,
          type:this.type,
        }
      }).then(res => {

        this.tableData = res.data.records
        this.total = res.data.total
      })
    },
    save() {
      this.request.post("/question", this.form).then(res => {
        if (res.code === '200') {
          this.$message.success("保存成功")
          this.dialogFormVisible = false
          this.load()
        } else {
          this.$message.error("保存失败")
        }
      })
    },
    saveRoleMenu() {
      this.request.post("/question/roleMenu/" + this.roleId, this.$refs.tree.getCheckedKeys()).then(res => {
        if (res.code === '200') {
          this.$message.success("绑定成功")
          this.menuDialogVis = false

          // 操作管理员角色后需要重新登录
          if (this.roleFlag === 'ROLE_ADMIN') {
            this.$store.commit("logout")
          }

        } else {
          this.$message.error(res.msg)
        }
      })
    },
    handleAdd() {
      this.dialogFormVisible = true
      this.form = {}
    },
    handleEdit(row) {
      this.form = JSON.parse(JSON.stringify(row))
      this.dialogFormVisible = true
    },
    del(id) {
      this.request.delete("/question/" + id).then(res => {
        if (res.code === '200') {
          this.$message.success("删除成功")
          this.load()
        } else {
          this.$message.error("删除失败")
        }
      })
    },
    handleSelectionChange(val) {
      console.log(val)
      this.multipleSelection = val
    },
    delBatch() {
      let ids = this.multipleSelection.map(v => v.id)  // [{}, {}, {}] => [1,2,3]
      this.request.post("/question/del/batch", ids).then(res => {
        if (res.code === '200') {
          this.$message.success("批量删除成功")
          this.load()
        } else {
          this.$message.error("批量删除失败")
        }
      })
    },
    reset() {
      this.name = ""
      this.courseId=null
      this.type=null
      this.load()
    },
    handleSizeChange(pageSize) {
      console.log(pageSize)
      this.pageSize = pageSize
      this.load()
    },
    handleCurrentChange(pageNum) {
      console.log(pageNum)
      this.pageNum = pageNum
      this.load()
    },
    async selectMenu(role) {
      this.roleId = role.id
      this.roleFlag = role.flag
      this.request.get("/question/roleMenu/" + this.roleId).then(res => {
        this.checks = res.data
        this.ids.forEach(id => {
          if (!this.checks.includes(id)) {
            // 可能会报错：Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'setChecked')
            this.$nextTick(() => {
              this.$refs.tree.setChecked(id, false)
            })
          }
        })
        this.menuDialogVis = true
      })
    },
  }
}
</script>


<style>
.headerBg {
  background: #eee!important;
}
</style>
